How do we know with still have a functioning ecosystem ? For example, there is a massive extinction of bees going on, the only reason we don't see a massive imp

How do we know with still have a functioning ecosystem ? For example, there is a massive extinction of bees going on, the only reason we don't see a massive impact is that we have industrialized bee productions. https://theconversation.com/a-bee-economist-explains-honey-bees-vital-role-in-growing-tasty-almonds-101421 https://theconversation.com/a-bee-economist-explains-honey-b... > In 2017, beekeepers in North Dakota, Idaho, Florida and other states shipped 1.7 million colonies to California to pollinate almond trees, or about 64 percent of the total population as of Jan. 1. The bees travel in semi-truck loads of 400 to 500 colonies each.